Sterile Nylon Flocked Cervical Swab with Tube

1、 General Operating Standards
Aseptic operation
Wash hands and wear gloves before use, tear open the individual packaging and remove the swab to avoid touching the head of the swab with your hands.
If wet samples (such as oral mucosa) need to be processed, sterile water can be dripped onto one side of the swab while keeping the other side dry to improve adsorption efficiency.

2、 Sampling steps for different parts
Oral/oropharyngeal sampling
The patient tilts their head slightly, opens their mouth wide and makes an “ah” sound, revealing the posterior pharyngeal wall and tonsils.
Wipe the swab over the base of the tongue and up and down the posterior pharyngeal wall and tonsil recess 3-5 times with moderate force.
After sampling, place the swab head vertically into the virus storage tube, break the rod according to the position of the break point, and seal it.

Nasal/Nasopharyngeal Sampling
The patient tilts their head back and the swab slowly penetrates 1-1.5 centimeters along the lower nasal passage to the posterior wall of the nasopharynx.
Gently rotate the swab 3-5 times (the nasopharyngeal swab should stay for 5 seconds) to ensure the adhesion of mucosal cells.
After removal, place it vertically in a storage tube, break it and seal it for inspection.

Gynecological cervical sampling
The patient stands, raises one leg to maintain balance, and slowly inserts the swab into the vagina to the cervix (about 7-10 centimeters).
Rotate the swab 4-5 times in one direction after pressing against the cervix, with moderate force (to avoid bleeding or insufficient cell count).
After sampling, place the swab head in cell preservation solution and break the seal.
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3、 Preservation and Sample Processing
Samples containing preservation solution should be refrigerated (4 ℃) within 4 hours, with a maximum storage time of 72 hours; Long term storage requires freezing (-70 ℃).
When breaking the swab, align it with the painted mark to avoid contamination or liquid leakage.
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4、 Precautions
Avoid contamination: After sampling, the swab should not come into contact with other objects, and the storage tube should be sealed immediately.
Force control: Avoid excessive force during rotation (such as preventing bleeding during nasal sampling).
Special scenario: The antigen detection kit swabs need to be stored away from light (2-30 ℃), and freezing is prohibited.
(Note: The operation must strictly follow medical standards, and self sampling is recommended to be carried out under the guidance of professional personnel.)

“Flocked Specimen Swabs” are flocked swabs, which are a new type of sampling tool widely used in medical and biological testing fields. The following is a detailed introduction to it:

Structure and Material
Swab head: usually composed of fine nylon fiber fluff, which is vertically fixed on the swab head through a special flocking process, which can greatly increase the contact area with the sampling site and collect samples more effectively2.
Swab rod: generally made of plastic material, such as ABS plastic, etc., with certain toughness and strength, convenient for hand-held operation, and some swab rods are also equipped with unique breaking points, which are convenient for breaking after collecting samples to facilitate the storage and transportation of specimens13.

Features and Advantages
High sampling efficiency: The fibers are tightly arranged and soft, which can better contact and absorb samples, and go deep into various difficult-to-reach parts for sampling, which can improve the quantity and quality of sample collection. Compared with traditional sampling tools such as cotton swabs, it can collect target samples more effectively2.
Strong adsorption: The fibers have good adsorption properties and can quickly adsorb cells, viruses and other substances in the samples to ensure the integrity of the samples.
Easy to wash off: The collected samples can be easily washed off from the flocked swab because it does not contain internal fabric or other inner cores to absorb the specimens. The samples are mainly adsorbed on the surface of the villi, which is conducive to subsequent detection and analysis4.
Soft and comfortable: It has little stimulation to the sampled parts, especially when sampling sensitive parts such as the nasopharynx, it can reduce discomfort and make it more comfortable to use.
Not easy to fall off: The specially treated flocked swabs have firm villi that are not easy to fall off, which avoids the villi falling into the sample during the sampling process and affecting the test results2.

Application field
Medical testing: It is commonly used to collect various samples from the human body, such as oral swabs, nasopharyngeal swabs, sputum, etc., for the detection of pathogens such as viruses and bacteria. For example, during the COVID-19 pandemic, it was widely used to collect throat swabs and nasal swabs for the detection of new coronavirus.
Biological research: In biological research, it can be used to collect samples such as cells and tissues for genetic analysis, cell culture, cytology and other experiments.
Environmental monitoring: It can be used to collect microbial samples in the environment, such as air, water, soil, etc., to conduct environmental quality testing and evaluate indicators such as pollutants and microorganisms in the environment.
Forensic identification: It can be used to collect biological samples at the crime scene, such as blood, hair, dandruff, etc., as evidence for forensic identification.

How to use
Choose the right swab: According to the sampling requirements and the characteristics of the sampled part, select the corresponding type and specification of flocking swab.
Preparation: Open the package, take out the flocking swab, and prepare the sampling tube, label and other tools.
Sampling: Gently insert the flocking swab into the sampled part, such as the mouth, nasal cavity, etc., rotate or wipe a certain number of times in the prescribed manner, so that the swab fully contacts the sampling part to collect enough samples.
Save the sample: Put the flocking swab with the sample collected into the sampling tube, break the swab rod, leave the swab head in the sampling tube, seal the sampling tube, and mark the sample information.
Send for inspection: Send the sample to the testing agency for testing in a timely manner.

Advantages of Flocked Swabs
Improved Sample Collection: The flocked fibers increase the surface area for sample collection, ensuring more cells or microorganisms are collected.
Efficient Release: The perpendicular fibers facilitate the complete release of the collected specimen into the transport medium.
Comfort: The soft, brush-like tip is more comfortable for patients compared to traditional fiber swabs.
Versatility: Suitable for various types of samples and tests, including PCR, antigen testing, and cultures.
Common Applications
Respiratory Sample Collection

Nasopharyngeal and oropharyngeal swabs for detecting respiratory viruses like COVID-19, influenza, and RSV.
Microbiological Testing

Wound, skin, and surface sampling for bacterial and fungal cultures.
DNA/RNA Collection

Buccal swabs for genetic testing, forensic analysis, and research.
Cell Collection

Collecting cells for cytological studies or other cellular analyses.
Procedure for Using Flocked Swabs

Preparation

Wear appropriate personal protective equipment (PPE), including gloves and a mask.
Ensure the swab and transport medium are sterile and within their expiration date.
Label the transport tube or collection container with the patient’s information.
Sample Collection

Transfer to Transport Medium

Place the swab into the transport medium or sterile container.
Break the swab shaft at the designated break point if necessary and securely close the container.
Transport and Storage

Place the collected sample in a biohazard bag or transport container.
Transport the sample to the laboratory as per guidelines, typically maintaining it at refrigerated temperatures (2-8°C).
Storage and Handling
Store unused swabs in their original, unopened packaging at room temperature.
Avoid exposure to direct sunlight and moisture to maintain sterility.
By following proper procedures and using flocked swabs, healthcare professionals can ensure accurate and reliable specimen collection, leading to better diagnostic outcomes and patient care.

1. Design: Flocked swabs consist of a plastic or aluminum shaft with a tip coated in nylon fibers. These fibers are arranged in a specific orientation to create a soft, absorbent surface for optimal specimen collection.
2. Specimen Collection: Flocked swabs are used to collect samples from various parts of the body, including the nasopharynx (the upper part of the throat behind the nose), oropharynx (the part of the throat at the back of the mouth), and other mucosal surfaces. They are particularly useful for collecting samples from areas that are hard to reach or have limited space.
3. Advantages: Compared to traditional fiber swabs, flocked swabs offer several advantages:
   • Improved sample collection: The nylon fibers have a greater surface area and absorbency, resulting in better sample collection.
   • Enhanced release: The collected sample is easily released from the swab into the transport medium or testing platform, reducing the risk of sample loss or contamination.
   • Reduced discomfort: The soft, flexible tip of flocked swabs is designed to minimize patient discomfort during sample collection.
4. Applications: Flocked swabs are widely used in clinical settings for various diagnostic tests, including:
   • Respiratory virus testing (e.g., COVID-19)
   • Microbiological culture
   • Forensic DNA collection
   • Infectious disease testing (e.g., influenza, streptococcus)
5. Sterility: To prevent contamination of samples, flocked swabs are typically sterilized and individually packaged. Proper handling and storage are essential to maintain sterility until the swab is used.
6. Quality Assurance: Manufacturers of flocked swabs adhere to strict quality control standards to ensure the consistency and reliability of their products. This includes testing for sterility, material integrity, and performance characteristics.
7. Disposable: Flocked swabs are single-use devices and should be discarded after a single use to prevent cross-contamination between patients and ensure accurate test results.
8. Compatibility: Flocked swabs are compatible with a wide range of transport media and testing platforms, making them versatile tools for specimen collection in various laboratory settings.

Overall, flocked swabs play a crucial role in modern diagnostic medicine, offering improved sample collection and handling capabilities compared to traditional swabs. Their widespread use has been particularly notable during the COVID-19 pandemic, where efficient and reliable specimen collection is essential for controlling the spread of the virus.

Huachenyang: Huachenyang is a leading manufacturer of various types of swabs, including flocked swabs, for specimen collection and transport. They offer a wide range of products tailored to different applications in clinical microbiology and molecular diagnostics.

Medical Swabs Sampling

In the medical field, sterile swabs play a crucial role in sample collection for diagnostic purposes. They are commonly used to collect specimens such as saliva, blood, or other bodily fluids for laboratory testing. The sterile nature of these medical swabs ensures that the samples remain uncontaminated, providing accurate results that are essential for proper diagnosis and treatment.

Sterile Swabs Cleans the Wound

Moreover, sterile swabs find extensive use in wound care and surgical procedures. They are employed to clean wounds and apply antiseptics or medications effectively. The disposable nature of these swabs eliminates the risk of cross-contamination between patients and reduces the chances of infection during surgeries.

Sterile swabs also find application beyond healthcare settings. Industries such as food production and cosmetics utilize them for quality control purposes. These industries rely on sterile swabs to collect samples from surfaces or equipment to ensure compliance with hygiene standards.

The convenience offered by disposable sterile swabs cannot be overstated. Their single-use design eliminates the need for time-consuming sterilization processes, making them a cost-effective solution for various applications.

In conclusion, the wide application of disposable sterile swabs is evident across different industries, particularly in healthcare settings where maintaining cleanliness is paramount. Their ability to prevent contamination while offering convenience makes them an essential tool in ensuring accurate diagnostics, promoting wound care hygiene, and maintaining high standards of cleanliness across various sectors.

Advantages of Flock Swabs

Sample Collection: The tip of the flock swab is filled with dense nylon fibers, a unique structure that can greatly increase the number of samples collected.

Sample Collection: The tip of the flock swab is filled with dense nylon fibers, a unique structure that can greatly increase the number of samples collected.

Why are flock swabs more beneficial for micro DNA collection?

The traditional cotton swab tip is made of cotton fibers entangled into the internal structure. The sampling of this fiber mass will be scattered. The sample remains on the fiber leading to the original content of DNA precipitation and release efficiency, and may even lead to inaccurate results of the test.

The flock swab tip is a unique flocked structure. It can almost completely extract and precipitate trace DNA, so the flock swab has a more obvious advantage in collecting trace DNA.

How does the flock swab release the sample?

• The directional friction effect of the swab fiber layer can completely capture the cell sample.
• Since the cell sample is concentrated on the near surface of the flock swab fiber, more than 95% of the sample can be released eventually.
• The capillary movement between the nylon fibers at the tip of the flock swab forms a strong hydraulic pressure for absorbing liquid or cell-like samples.

What is a Cervical Swab?

A cervical swab is a nylon flocked swab with a tip full of dense villi. The unique shape of the tip allows the swab to enter the vagina smoothly, allowing a large number of vaginal and cervical samples to be collected. The swab rod is made of ABS and is set with a break point so that the doctor can easily break the rod and then save the sample.

How to Use the Cervical Swab?

1. Before sampling, if necessary, wipe away excessive secretions at the vaginal opening with a swab, then stick the disposable sampling swab into the cervical opening and gently rotate the cervical swab 3-5 times.

2. Slowly withdraw the disposable flocked swab and place it into the sample tube containing the cell preservation solution, breaking the excess brush handle at the mouth of the tube and leaving the tip of the swab in the sample tube.

3. Fully immerse the flocked tip in the preservation solution and tighten the cap tightly. Record the patient’s name and other information on the label, and finally, place the sample preservation tube into the specimen bag and transport it to the laboratory.

Traditional swabs are cotton, but the swabs used for nucleic acid testing are made of polyester or nylon fibers. Do many people ask questions such as why not use cotton swabs for sampling? Are the nylon fibers that fall down the throat harmful to humans? Are flocked swabs sterilized?

Cotton Swabs vs. Flocked Swabs

Cotton swab:

Cotton swab head using medical skim cotton. Cotton swab stick is generally natural birch or bamboo swab, commonly used for wound cleaning, application of pharmaceuticals, etc.

Nylon flocked swabs:

The flocking swab is used to collect samples of viruses, bacteria, and other tools, generally composed of a swab tip and swab stick.

The flocked swab tip is generally made of polyester (polyester), polyamide (nylon), and other chemical synthetic fibers from the flocking process. The swab stick is generally medical-grade ABS plastic with a break point, often used for virus or bacteria sample sampling.

Why use Flocked Nylon Swabs?

1. Flocked swabs are made by nylon fiber flocking technology, the front end is coated with short nylon fibers fixed vertically, like a small brush, and the adsorption efficiency is 20%~60% higher than other swabs.
2. Compared with ordinary swabs, the nucleic acid sampling swab can greatly reduce the time spent collecting samples.
3. There is no absorption hole inside the tip of the nylon flocked swab, which is conducive to faster and more efficient sample elution.
4. Swabs are generally medical-grade ABS plastic with break points, which does not affect the quality of the sample, but also facilitate the handling and transport of samples, often used for virus or bacterial sample sampling.

Why do I feel uncomfortable in my throat after using a nylon flocked swab?

The fibers falling off the swab head may cause some itching in the throat. However, in general, the sampling time is relatively short and will not lead to many fibers falling off, and it is normal for fibers to fall off occasionally.

Are nylon flocked swabs harmful to the human body?

Medical flocked sampling swabs belong to medical devices, not only produced for the record, and there are strict production environment requirements and quality control standards. Qualified products must be non-toxic and harmless. The workshop can only be produced and put into use after meeting the relevant standards of quality supervision, so the flocked swabs are harmless to the human body.

Anterior Nasal Swab

The anterior nasal method is done with a swab to collect specimen from the nasal membrane. Insert the anterior nasal swab into the nostril about 0.5-0.75 inch deep and rotate for 10-15 seconds while touching the sides of the nasal wall.

while touching the sides of the nasal wall is rotated for 10-15 seconds in one nostril, then with the same swab, collected the same way in the other nostril. Because this method is less invasive, it is usually more comfortable for the patient—and also the method used when self-testing.

Swabs used for nasal sampling typically have a medium-sized tip made of an absorbent substance, most regularly flocked fibers, spun polyester, or medical-grade foam. Typically, ABS is used for the nasal swab handle.

Nasopharyngeal Swab

The nasopharyngeal collection method collects a sample from the nasopharynx (upper part of the throat behind the nose). The healthcare practitioner gently supports the patient’s head while using nasopharyngeal swab as it slowly and carefully insert rearward into the nostril to prevent scratching and bleeding. Gently rotate and slowly withdraw the swab once it has touched the posterior wall of the nasopharyngeal. It might not be necessary to take a sample from both nostrils if the tip of the swab is fully saturated with the specimen. This method tends to be less comfortable for the patient and should only be performed by a healthcare practitioner.

A swab used for nasopharyngeal is one designed with a miniature tip made of an nylon flocked material and one with a thin, flexible handle usually made of soft plastic or wire.

It should be noted that nasopharyngeal swab sampling should be avoided in patients with moderate allergic rhinitis, nasal malformations (such as a curved nasal septum), recent nasal bleeding symptoms, within three months of a recent nasal surgery, blood diseases, long-term anticoagulant medications, and other relevant medical histories and risk factors.

Difference between a sampling swab and a cotton bud?

Nylon fiber, polyurethane sponge, or rayon are common materials similar to toothbrushes.

Electrostatic interaction is used to uniformly and vertically cover the end of the swab handle with millions of microscopic fibers.

Elution is simpler and has a higher release rate since the sample obtained by the flocking swab remains on top of the fiber bundle and does not disperse or trap in the fiber. It does not impair the follow-up testing and has no adverse effects on pathogens, contact cells, or tissues.

“Sterile” and “Non-Sterile”?

China medical device evaluation experts said

Sterile: refers to the condition of having no living microorganisms, the medical device bearing the classification “sterile” has completed disinfection, and the theoretical likelihood of any surviving microbes should not be more than ten to the minus 6th power. Usually registered as Class Ⅱ Medical Device in China.

Should  “non-sterilized” swabs be disinfected before use?

It is not recommended to use a disinfectant to sanitize the swab head because this could degrade the sample and compromise the validity of the test results.

If accuracy requirements for sampling and detection exist, sterile swabs are highly recommended.

Why do some sample swabs yellowish and what causes them?

Swabs are individually wrapped, loaded, and delivered to other communities, where they are unpacked, disinfection, and distributed.

The disinfection route is the prime suspect among the other components since it has the potential to oxidize the swab and result in discoloration.

Verified by 11 different disinfectants, the results are as follows:

“＋“: Slight discoloration, “++”: Serious discoloration, “-“: Normal appearance

The sample swab contains some easily oxidized components, such as polyols, isocyanates, and urethanes.

Due to the properties of its substance, it can oxidize under bright light and high temperatures, or it can turn yellow due to gas fumigation when exposed to nitrogen oxides (NOx) in the air.

Nylon fiber generally has a stronger antioxidant capacity than polyurethane sponge swabs.

Swabs unavoidably encounter this phenomenon, hence it is advised to store at 20 to 30 °C avoid light to prevent yellowing.

Ergonomic and Anatomic Design

Improved patient comfort and efficiency in cell specimen collection.

Quantitative Volume Transfer

Measurable and consistent uptake and transfer of subjects.

Increased Assay Sensitivity

Nylon swabs are proven to elute >95% of the original sample rapidly, thus easily resulting in improved assay sensitivity.

Simply Collect, Snap and Ship

Peel open the pouch, collect the cell specimen and snap the flocked swab shaft into the Transport Medium or Cuvette-tube.

Superior Sample Elution

With an open fiber structure, it instantly & spontaneously dislodges the Specimen cells into the liquid Medium.

Perpendicular Nylon Fibers

Act like a soft brush and allows improved collection of cell samples. Capillary action between the Nylon fiber strands facilitates strong hydraulic uptake of cell specimens.

Certified Free of Inhibitors and Interference

Our Nylon swabs are strictly sterilized and certified free of DNAse, RNAse, Human DNA, and PCR inhibitors.

Highly Suited to Automation

Sample eluted in liquid format finally is accessible to Liquid Based Microbiology and automation in the laboratories.

Handle with Premolded Breakpoint

To accommodate different processing systems.